diff options
Diffstat (limited to 'sysdeps/m68k/fpu/s_cexp.c')
| -rw-r--r-- | sysdeps/m68k/fpu/s_cexp.c | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/sysdeps/m68k/fpu/s_cexp.c b/sysdeps/m68k/fpu/s_cexp.c deleted file mode 100644 index 4babf12..0000000 --- a/sysdeps/m68k/fpu/s_cexp.c +++ /dev/null @@ -1,117 +0,0 @@ -/* Complex exponential function. m68k fpu version - Copyright (C) 1997, 1999 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <complex.h> -#include <math.h> -#include "mathimpl.h" - -#ifndef SUFF -#define SUFF -#endif -#ifndef float_type -#define float_type double -#endif - -#define CONCATX(a,b) __CONCAT(a,b) -#define s(name) CONCATX(name,SUFF) -#define m81(func) __m81_u(s(func)) - -__complex__ float_type -s(__cexp) (__complex__ float_type x) -{ - __complex__ float_type retval; - unsigned long ix_cond; - - ix_cond = __m81_test (__imag__ x); - - if ((ix_cond & (__M81_COND_NAN|__M81_COND_INF)) == 0) - { - /* Imaginary part is finite. */ - float_type exp_val = m81(__ieee754_exp) (__real__ x); - - __real__ retval = __imag__ retval = exp_val; - if (m81(__finite) (exp_val)) - { - float_type sin_ix, cos_ix; - __asm ("fsincos%.x %2,%1:%0" : "=f" (sin_ix), "=f" (cos_ix) - : "f" (__imag__ x)); - __real__ retval *= cos_ix; - if (ix_cond & __M81_COND_ZERO) - __imag__ retval = __imag__ x; - else - __imag__ retval *= sin_ix; - } - else - { - /* Compute the sign of the result. */ - float_type remainder, pi_2; - int quadrant; - - __asm ("fmovecr %#0,%0\n\tfscale%.w %#-1,%0" : "=f" (pi_2)); - __asm ("fmod%.x %2,%0\n\tfmove%.l %/fpsr,%1" - : "=f" (remainder), "=dm" (quadrant) - : "f" (pi_2), "0" (__imag__ x)); - quadrant = (quadrant >> 16) & 0x83; - if (quadrant & 0x80) - quadrant ^= 0x83; - switch (quadrant) - { - default: - break; - case 1: - __real__ retval = -__real__ retval; - break; - case 2: - __real__ retval = -__real__ retval; - case 3: - __imag__ retval = -__imag__ retval; - break; - } - if (ix_cond & __M81_COND_ZERO && !m81(__isnan) (exp_val)) - __imag__ retval = __imag__ x; - } - } - else - { - unsigned long rx_cond = __m81_test (__real__ x); - - if (rx_cond & __M81_COND_INF) - { - /* Real part is infinite. */ - if (rx_cond & __M81_COND_NEG) - { - __real__ retval = __imag__ retval = 0.0; - if (ix_cond & __M81_COND_NEG) - __imag__ retval = -__imag__ retval; - } - else - { - __real__ retval = __real__ x; - __imag__ retval = __imag__ x - __imag__ x; - } - } - else - __real__ retval = __imag__ retval = __imag__ x - __imag__ x; - } - - return retval; -} -#define weak_aliasx(a,b) weak_alias(a,b) -weak_aliasx (s(__cexp), s(cexp)) |